4 control using cts and rts, 5 settings related to rs-232c – Rice Lake GF Series, A&D Weighing User Manual

Page 69

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Setting a negative target value and filling with a sample until the display becomes zero

18-4 Control Using CTS and RTS

Depending on the “Ct5” parameter of “Serial interface ( 5if )”, the balance performs as follows:

Ct5 0

Regardless of whether the balance can receive a command or not, the balance keeps the CTS line
HI. The balance outputs data regardless of the condition of the RTS line.

Ct5 1

The CTS line is kept Hi normally. When the balance can not receive the next command (e.g. while
the balance is processing last command), the balance sets the CTS line to Lo. The balance confirms
the level of the RTS line before outputting a set of data. If the RTS level is Hi, the balance outputs
data. If the RTS level is Lo, data is not output (The data is canceled).

18-5 Settings Related to RS-232C

Concerning the RS-232C, the balance has two functions: “Data output ( dout )” and “Serial interface
( 5if )”. Set each function as necessary.

Place a container

Zero display

Personal computer Time Balance

R command

CR

R

LF

AKCR LF

AKCR LF

CR LF

g

0

0

0

0

1

:

T

P

.

PT: command to set a target weight of 100 g

Before command
execution

AKCR LF

AKCR LF

Target weight display

Fill with sample until the
display becomes zero

In process

Command received

Command completed

Command received

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